From c893804a5e5be90ac71890ab0fb41da6bc1bf65f Mon Sep 17 00:00:00 2001
From: Daniel Liu <liudaniel@qq.com>
Date: Tue, 14 Jan 2025 10:56:15 +0800
Subject: [PATCH] eth/filters: update Backend interface (#26126)

---
 accounts/abi/bind/backends/simulated.go |  8 ++++++++
 eth/filters/filter_system.go            |  3 +++
 eth/filters/filter_system_test.go       |  8 ++++++++
 internal/ethapi/backend.go              | 17 ++++++++++-------
 4 files changed, 29 insertions(+), 7 deletions(-)

diff --git a/accounts/abi/bind/backends/simulated.go b/accounts/abi/bind/backends/simulated.go
index 0e77a27b2483..877851bcc85a 100644
--- a/accounts/abi/bind/backends/simulated.go
+++ b/accounts/abi/bind/backends/simulated.go
@@ -977,6 +977,14 @@ func (fb *filterBackend) ServiceFilter(ctx context.Context, ms *bloombits.Matche
 	panic("not supported")
 }
 
+func (fb *filterBackend) ChainConfig() *params.ChainConfig {
+	panic("not supported")
+}
+
+func (fb *filterBackend) CurrentHeader() *types.Header {
+	panic("not supported")
+}
+
 func nullSubscription() event.Subscription {
 	return event.NewSubscription(func(quit <-chan struct{}) error {
 		<-quit
diff --git a/eth/filters/filter_system.go b/eth/filters/filter_system.go
index ad592154efa9..02a13c545e54 100644
--- a/eth/filters/filter_system.go
+++ b/eth/filters/filter_system.go
@@ -35,6 +35,7 @@ import (
 	"github.com/XinFinOrg/XDPoSChain/ethdb"
 	"github.com/XinFinOrg/XDPoSChain/event"
 	"github.com/XinFinOrg/XDPoSChain/log"
+	"github.com/XinFinOrg/XDPoSChain/params"
 	"github.com/XinFinOrg/XDPoSChain/rpc"
 )
 
@@ -63,6 +64,8 @@ type Backend interface {
 	GetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error)
 	PendingBlockAndReceipts() (*types.Block, types.Receipts)
 
+	CurrentHeader() *types.Header
+	ChainConfig() *params.ChainConfig
 	SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
 	SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
 	SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go
index d2a8cc2239ac..de872ea989cc 100644
--- a/eth/filters/filter_system_test.go
+++ b/eth/filters/filter_system_test.go
@@ -52,6 +52,14 @@ type testBackend struct {
 	chainFeed       event.Feed
 }
 
+func (b *testBackend) ChainConfig() *params.ChainConfig {
+	panic("implement me")
+}
+
+func (b *testBackend) CurrentHeader() *types.Header {
+	panic("implement me")
+}
+
 func (b *testBackend) ChainDb() ethdb.Database {
 	return b.db
 }
diff --git a/internal/ethapi/backend.go b/internal/ethapi/backend.go
index b9be939a6a42..560119df78de 100644
--- a/internal/ethapi/backend.go
+++ b/internal/ethapi/backend.go
@@ -21,21 +21,19 @@ import (
 	"context"
 	"math/big"
 
+	"github.com/XinFinOrg/XDPoSChain/XDCx"
 	"github.com/XinFinOrg/XDPoSChain/XDCx/tradingstate"
 	"github.com/XinFinOrg/XDPoSChain/XDCxlending"
-	"github.com/XinFinOrg/XDPoSChain/accounts/abi/bind"
-
-	"github.com/XinFinOrg/XDPoSChain/XDCx"
-
 	"github.com/XinFinOrg/XDPoSChain/accounts"
+	"github.com/XinFinOrg/XDPoSChain/accounts/abi/bind"
 	"github.com/XinFinOrg/XDPoSChain/common"
 	"github.com/XinFinOrg/XDPoSChain/consensus"
 	"github.com/XinFinOrg/XDPoSChain/core"
+	"github.com/XinFinOrg/XDPoSChain/core/bloombits"
 	"github.com/XinFinOrg/XDPoSChain/core/state"
 	"github.com/XinFinOrg/XDPoSChain/core/types"
 	"github.com/XinFinOrg/XDPoSChain/core/vm"
 	"github.com/XinFinOrg/XDPoSChain/eth/downloader"
-	"github.com/XinFinOrg/XDPoSChain/eth/filters"
 	"github.com/XinFinOrg/XDPoSChain/ethdb"
 	"github.com/XinFinOrg/XDPoSChain/event"
 	"github.com/XinFinOrg/XDPoSChain/params"
@@ -92,7 +90,6 @@ type Backend interface {
 	OrderTxPoolContent() (map[common.Address]types.OrderTransactions, map[common.Address]types.OrderTransactions)
 	OrderStats() (pending int, queued int)
 	SendLendingTx(ctx context.Context, signedTx *types.LendingTransaction) error
-	SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
 
 	ChainConfig() *params.ChainConfig
 	CurrentBlock() *types.Block
@@ -108,10 +105,16 @@ type Backend interface {
 	AreTwoBlockSamePath(newBlock common.Hash, oldBlock common.Hash) bool
 	GetOrderNonce(address common.Hash) (uint64, error)
 
+	// This is copied from filters.Backend
 	// eth/filters needs to be initialized from this backend type, so methods needed by
 	// it must also be included here.
 	GetBody(ctx context.Context, hash common.Hash, number rpc.BlockNumber) (*types.Body, error)
-	filters.Backend
+	GetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error)
+	SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
+	SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
+	SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
+	BloomStatus() (uint64, uint64)
+	ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
 }
 
 func GetAPIs(apiBackend Backend, chainReader consensus.ChainReader) []rpc.API {